Delta 66-750 instruction manual Troubleshooting, Problem Cause Correction

Page 22

TROUBLESHOOTING

Performing repairs may expose voltage sources, moving parts or compressed air sources, moving parts or

compressd air sources. Personal injury may occur. Prior to attempting any repairs, unplug the air compressor and bleed off all air tank air pressure.

 

PROBLEM

CAUSE

 

CORRECTION

 

Excessive tank

Pressure switch does not

Move On/Auto/Off lever to

 

pressure -

shut off motor when

the "OFF" position, if the

 

safety valve

compressor reaches "cut-

outfit does

 

pops off.

out" pressure.

not shut off contact a

 

 

 

Trained Service Technician.

 

 

Pressure switch "cut-out"

Contact a Trained Service

 

 

too high.

Technician.

 

 

 

 

 

 

 

 

 

 

Air leaks at

Tube fittings are not tight

Tighten fittings where air can

 

fittings.

enough.

be heard escaping. Check

 

 

 

fittings with soapy water

 

 

 

solution. DO NOT

 

 

 

OVERTIGHTEN.

 

 

 

 

 

 

Air leaks at or

Check valve seat damaged.

 

A defective check valve

 

inside check

 

 

results in a constant air leak

 

valve

 

 

at the pressure release valve

 

 

 

 

when there is pressure in the

 

 

 

 

tank and the compressor is

 

 

 

 

shut off. Replace check

 

 

 

 

valve. Refer the "To Replace

 

 

 

 

or Clean Check Valve" in the

 

 

 

 

"Operation" section.

 

 

 

 

 

 

 

 

 

 

Air leaks at

Defective pressure switch

Contact a Trained Service

 

pressure switch

release valve.

Technician.

 

release valve.

 

 

 

 

 

 

 

 

(if equipped)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Air leaks in air

Defective air tank.

Air tank must be replaced.

 

tank or at air

 

Do not repair the leak.

 

tank welds.

 

 

 

 

 

Do not

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

drill into,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

weld or otherwise modify

 

 

 

air tank or it will weaken.

 

 

 

The tank can rupture or

 

 

 

explode.

 

Air leaks

Leaking seal.

Contact a Trained Service

 

between head

 

Technician.

 

and valve plate.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D26269

22-ENG

Image 22
Contents Structioin N M Anual Safety Guidelines Definitions Hazard Attachments & Accessories Hazard What can Happen HOW to Prevent IT Fire, Inhalation, Damage to Vehicle Surfaces Glossary SpecificationsAccessories Duty CycleUnpacking AssemblyTools Required for Assembly To Add Oil To PumpLocation of the Air Compressor InstallationAnchoring of the Air Compressor Voltage and Circuit Protection Wiring InstructionsAir Distribution System Typical Compressed AIR Distribution System Operation Know Your Air Compressor Description of OperationHow to Stop Pressure Release Valve The pressureBefore Each Start-Up To Check Safety Valve MaintenanceCustomer Responsibilities To Drain Tank OilAir Filter Inspection and Replacement Motor Pulley/Flywheel AlignmentAir Compressor Pump Intake and Exhaust Valves Service and AdjustmentsInspect Air Lines and Fittings for Leaks To Replace or Clean Check Valve Storage To Replace BeltTroubleshooting Problem Cause CorrectionPressure reading D26269 24-ENG 25-ENG D26269 AIR Compressor Diagram Parts List KEY DescriptionPump Diagram KEY Limited Warranty